Multiple electric security jack



Jan. 30, 1962 s. BARISIN 3,019,405

MULTIPLE ELECTRIC SECURITY JACK Filed July 9, 1959 INVENTOR. S-Pw I BYUnit tates 3,019,405 MULTIPLE ELECTRIC SECURITY JACK Simon Barisin, 2671Tncuman St, Olives, Buenos Aires, Argentina Filed July 9, 1959, Ser. No.825,937 3 Claims. (Cl. 339-36) The present invention refers to amultiple safety outlet, to be used aifixed to any given surface, inorder to receive when required, a plurality of electric plugs, thusavoiding unnecessary massiveness, as it generally occurs with systemsknown at present.

One of the advantageous applications of this invention is its use inbedrooms, particularly in back of heavy pieces of furniture, where oftenseveral electric appliances are permanently connected.

Due to its characteristics, the safety outlet can be furnished with anyconvenient number of receptive pairs of sockets which can be adapted toreceive cylindrical as well as fiat-shaped prongs, or whatevercombination of these two well known systems is desired.

For safetys sake, each pair of sockets carries an internal coveringplate, which operates only when a locking means, which is part of themechanism, is turned into a dead position.

Such locking means in its operative position prevents the sliding of theinternal covering plate of any given receptive pair of sockets, and thelocking means is so constructed so that it can be operated even thoughone or more plugs are in use.

The execution of this invention will be carried out in any proper sizes,materials and forms considered more appropriate for aforesaid purposes.

In all figures of the drawing same reference numerals indicate equal orcorresponding parts. For the purpose of illustrating the invention,there are shown in the accompanying drawings forms thereof which are atpresent preferred, although it is to be understood that the variousinstrumentalities of which the invention consists can be variouslyarranged and organized and that the invention is not limited to theprecise arrangements and organizations of the instrumentalities asherein shown and described.

Referring to the drawings in which like reference characters refer tolike parts:

FIGURE 1 is a perspective view of a preferred form of construction ofthe unit according with the present invention.

FIGURE 2 is a perspective rear view of the unit of FIGURE 1, partiallybroken in order to show the interior of the unit.

FIGURE 3 is a perspective view of the covering plate locking means.

FIGURE 4 is a cross section of the unit, showing the way how the lockingmeans operates upon the covering plate.

Referring to the accompanying drawings the electric outlet of thepresent invention comprises an external case formed by two halves 1, 2conveniently joined together, having each a prismatic rectangular shape,and each provided on one of the edges with cutouts 3, 4 forming circularor rectangular openings receptive of prongs 5, 6 of an electric plug 7.

Under each pair of openings a sliding or movable plate 8 is disposed,showing identical and corresponding perforations, which when displacedby the operating frontal knob 9 allows the introduction of prongstowards inner contacts 10, 11.

A spring 12 is connected to each sliding plate, forcing the same to itsclosing position.

The aforesaid plates are formed on one of the edges Patented Jan. so,Iss2 with cutouts 13, 14 which are adapted to alternatively lodge theprojection 15, of a bar 16, turnable by means of an end knob 17, whichprojects out of the external case at either end, as preferred.

When it is desired to prevent any movement of the covering plates, itwill be sufficient therefore to turn the knob 17 at the end of theexternal case, which movement will cause the corresponding projection 15of the bar 16 to extend into the respective cutout 13, thus eliminatingpossible displacements of the plates.

The casing 1, 2 may be fastened by screws 19, shown in cross section inFIG. 2 to a wall and the bar 16 may be formed with bends or crankportions 18 in order not to interfere with the screws 19.

Such tie can be obtained even though when one or more sections of theelectric outlet are used.

The present invention may be embodied in other specific forms withoutdeparting from the essential attributes thereof, and it is thereforedesired that the present embodiments be considered in all respects asillustrative and not restrictive, reference being had to the appendedclaims rather than to the foregoing description to indicate the scope ofthe invention.

Having described my invention, I claim:

1. A safety electrical outlet comprising, in combination, an elongatedhousing formed in a wall thereof with a plurality of pairs of aperturesrespectively adapted for receiving the prongs of electrical plugs; aplate for each pair of apertures slidably arranged in said housingadjacent said wall and movable between an open position permittinginsertion of the prongs of an electrical plug through the respectivepair of apertures and a closed position preventing insertion of suchprongs through said pair of apertures; spring means operativelyconnected to each of said plates and tending to move the same to saidclosed position thereof; manually operable means connected to each plateand extending to the exterior of the housing for moving said plateagainst the pressure of said spring means from said closed to said openposition so that prongs of a plug may be inserted through the respectivepair of apertures; and a single locking means cooperating with all ofsaid plates for locking the plates which are moved to the open positionin said open position while locking at the same time the plates whichare left in the closed position in said closed position.

2. A safety electrical outlet comprising, in combination, an elongatedhousing formed in a wall thereof with a plurality of pairs of aperturesrespectively adapted for receiving the prongs of electrical plugs; aplate for each pair of apertures arranged in said housing adjacent saidwall, each of said plates being formed with a pair of cutouts and beingmovable in longitudinal direction of said housing a preselected distancebetween an open position in which said cut-outs are aligned with thecorresponding pair of apertures thus permitting insertion of the prongsof an electrical plug through the respective pair of apertures and saidcut-outs and a closed position in which said pair of cut-outs are out ofalignment with the corresponding pair of apertures, thus preventinginsertion of said prongs; spring means operatively connected to each ofsaid plates and tending to move the same to said closed positionthereof; manually operable means connected to each plate and extendingto the exterior of the housing for moving said plate against thepressure of said spring means from said closed to said open position sothat the prongs of a plug may be inserted through the respective pair ofapertures; and a single locking means cooperating with all of saidplates for locking the plates which are moved to the open position insaid open position while locking at the same time the plates which areleft in the closed position in said closed position.

3. A safety electrical outlet comprising, in combination, an elongatedhousing formed in a wall thereof with a plurality of pairs of aperturesrespectively adapted for receiving the prongs of electrical plugs; aplate for each pair of apertures arranged in said housing adjacent saidwall, each of said plates being formed with a pair of cutouts and beingmovable in longitudinal direction of said housing a preselected distancebetween an open position in which said cut-outs are aligned with thecorresponding pair of apertures thus permitting insertion of the prongsof an electrical plug through the respective pair of apertures and saidcut-outs and a closed position in which said pair or" cut-outs are outof alignment with the corresponding pair of apertures, thus preventinginsertion of said prongs, each of said plates being further formed at anedge thereof extending in longitudinal direction of said housing with apair of notches extending from said edge substantially normal theretointo said plates and being spaced from each other said preselecteddistance; spring means operatively connected to each of said plates andtending to move the same to said closed position thereof; manuallyoperable means connected to each plate and extending to the exterior ofthe housing for moving said plate against the pressure of said springmeans from said closed to said open position so that the prongs of aplug may be inserted through the respective pair of apertures; and asingle locking means cooperating with all of said plates for locking theplates which are moved to the open 4 position in said open positionwhile locking at the same time the plates which are left in the closedposition in said closed position, said locking means comprising anelongated rod extendng in longitudinal direction of said housing andbeing mounted. therein turnably about its axis, and a plurality ofprongs fixed to said rod extending in transverse direction of said axisand being spaced from each other so that consecutive prongs arerespectively aligned with one notch of consecutive plates when saidplates are in said closed position and so that said prongs are alignedwith the other notch of the respective plate when said plate is moved insaid preselected distance from said closed to said open position, saidrod being turnable from a locking position in which said prongs arelocated in said notches and an unlocking position in which said prongsare out of said notches, whereby the plates moved from said closed tosaid open position thereof may be locked by said prongs in said openposition while the remaining plates are at the same time locked in theclosed position thereof when said rod is turned from said unlockingposition to said locking position.

Popp May 8, 1951 Erkkila Nov. 3, 1953

